Measurements of integrated water vapor (IWV or PWV) at the Thule High Arctic Atmospheric Observatory (THAAO) carried out by means of a microwave spectrometer (VESPA-22) designed and built at the INGV laboratories in Rome. Measurements start in July 2016 and are carried out every 20 to 40 minutes. VESPA-22 measures the sky opacity at 22 GHz by performing a sky scan (or tipping curve) and this observation is then converted into water vapor column contents. During the years 2020-2023 data collection is also funded by the Environment Department of INGV through project MACMAP
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Integrated Water Vapor at the Thule High Arctic Atmospheric Observatory (THAAO_IWV)
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Agenzia Nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile (ENEA)